DEPLOYMENT PROTOCOL
Placement: Place the device (Phone/Speaker) directly on the surface you want to protect (e.g., the Couch cushion or Kitchen counter).
Direction: Point the speaker *towards* the approach path. High frequencies are directional beams; they do not travel through walls.
THE FREQUENCY
Target: 18,000 Hz - 25,000 Hz
This range is "The Mosquito Zone." It is piercing to dogs and cats but usually silent to adult humans.
Calibration: Slide the frequency up until YOU can't hear it anymore. If your pet's ears twitch or they leave the room, it is working.